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Finding the Fourth Proportional to 5,688.96, 8,534.40 and 1,794.40

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Solution

The fourth proportional to 5,688.96, 8,534.40 and 1,794.40 is: 2,691.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,688.96 : 8,534.40 = 1,794.40 : x
  2. Step 2: Convert to fraction form
    5,688.96/8,534.40 = 1,794.40/x
  3. Step 3: Cross multiply
    5,688.96x = 8,534.40 × 1,794.40
  4. Step 4: Simplify right side
    5,688.96x = 15,314,127.36
  5. Step 5: Solve for x
    x = 15,314,127.36/5,688.96
  6. Step 6: Final answer
    x = 2,691.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.